Which of the following is NOT an advantage of using ductless mini-split systems?

Ductless mini-split systems offer numerous advantages, and one of the crucial benefits is their cost-effectiveness in terms of energy usage. These systems operate efficiently, often resulting in lower energy costs compared to traditional HVAC systems. They allow for targeted heating and cooling, which means that energy is not wasted on unoccupied spaces, contributing to overall savings.

Flexibility in installation is another major advantage. Ductless mini-splits do not require extensive ductwork, making them suitable for a variety of settings, including homes without existing duct systems or where installation might be challenging.

Better zoning and control refer to the ability to adjust temperatures in different areas independently. This situation avoids unnecessary heating or cooling, leading to enhanced comfort and efficiency.

Improved aesthetics is also a selling point; these systems typically have a sleek design and can be mounted in a variety of locations, allowing for greater design freedom in residential or commercial spaces.

Thus, increased energy costs do not align with the benefits of ductless mini-split systems, making it the correct choice for the option that is not an advantage.